```html
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    <title>Spring Session Redis 共享方案 | 技术小馆</title>
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</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero text-white py-20 px-4 md:px-0">
        <div class="container mx-auto max-w-5xl px-6">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-4xl md:text-5xl font-bold mb-4 font-serif">Spring Session Redis 共享方案</h1>
                    <p class="text-xl opacity-90 mb-6">优雅解决分布式系统中的会话共享问题</p>
                    <div class="flex items-center space-x-2">
                        <span class="bg-white bg-opacity-20 px-3 py-1 rounded-full text-sm">#分布式系统</span>
                        <span class="bg-white bg-opacity-20 px-3 py-1 rounded-full text-sm">#Session管理</span>
                        <span class="bg-white bg-opacity-20 px-3 py-1 rounded-full text-sm">#Redis</span>
                    </div>
                </div>
                <div class="md:w-1/2 flex justify-center">
                    <div class="relative w-64 h-64 md:w-80 md:h-80">
                        <div class="absolute inset-0 bg-white bg-opacity-10 rounded-full transform rotate-45"></div>
                        <div class="absolute inset-4 bg-white bg-opacity-5 rounded-full transform -rotate-12"></div>
                        <div class="absolute inset-8 flex items-center justify-center">
                            <i class="fas fa-server text-6xl text-white opacity-80"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="container mx-auto max-w-5xl px-6 py-12">
        <!-- Introduction -->
        <section class="mb-16">
            <div class="prose prose-lg max-w-none">
                <h2 class="text-3xl font-bold text-gray-800 mb-6 font-serif">解决方案概述</h2>
                <p class="text-lg text-gray-700 mb-6">在分布式系统中，传统的基于内存的会话存储方式会遇到一系列问题。通过将Session存储到Redis中，我们可以实现跨服务的会话共享，提升系统的可扩展性和可靠性。</p>
                
                <div class="bg-blue-50 border-l-4 border-blue-500 p-4 mb-8 rounded-r">
                    <div class="flex">
                        <div class="flex-shrink-0">
                            <i class="fas fa-lightbulb text-blue-500 text-2xl mt-1"></i>
                        </div>
                        <div class="ml-3">
                            <h3 class="text-lg font-medium text-blue-800">关键优势</h3>
                            <div class="mt-2 text-blue-700">
                                <p>• 跨服务器会话共享</p>
                                <p>• 提高系统扩展性</p>
                                <p>• 支持高可用架构</p>
                                <p>• 灵活的会话存储策略</p>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Core Components -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold text-gray-800 mb-8 font-serif">核心组件解析</h2>
            
            <div class="grid md:grid-cols-2 gap-8">
                <!-- SessionRepository -->
                <div class="concept-card bg-white p-6 rounded-lg shadow-sm">
                    <div class="flex items-center mb-4">
                        <div class="bg-blue-100 p-3 rounded-full mr-4">
                            <i class="fas fa-database text-blue-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">SessionRepository 接口</h3>
                    </div>
                    <p class="text-gray-600 mb-4">负责Session的CRUD操作的核心接口，定义了创建、保存、查找和删除Session的基本方法。</p>
                    
                    <div class="code-block p-4 rounded overflow-x-auto">
                        <pre class="text-gray-300"><code>public interface SessionRepository&lt;S extends Session&gt; {
    S createSession();
    void save(S var1);
    S findById(String var1);
    void deleteById(String var1);
}</code></pre>
                    </div>
                    
                    <div class="mt-4 pt-4 border-t border-gray-100">
                        <h4 class="text-sm font-semibold text-gray-500 mb-2">关键方法</h4>
                        <ul class="text-sm text-gray-600 space-y-1">
                            <li><i class="fas fa-check-circle text-blue-500 mr-2"></i> createSession: 创建一个新会话</li>
                            <li><i class="fas fa-check-circle text-blue-500 mr-2"></i> save: 持久化会话状态</li>
                            <li><i class="fas fa-check-circle text-blue-500 mr-2"></i> findById: 通过ID查找会话</li>
                            <li><i class="fas fa-check-circle text-blue-500 mr-2"></i> deleteById: 删除指定会话</li>
                        </ul>
                    </div>
                </div>
                
                <!-- Request/Response Wrapper -->
                <div class="concept-card bg-white p-6 rounded-lg shadow-sm">
                    <div class="flex items-center mb-4">
                        <div class="bg-purple-100 p-3 rounded-full mr-4">
                            <i class="fas fa-exchange-alt text-purple-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">请求/响应包装器</h3>
                    </div>
                    <p class="text-gray-600 mb-4">拦截请求并将原生Request和Response替换为Spring Session提供的Wrapper实现，确保会话状态从Redis中正确读取和保存。</p>
                    
                    <div class="mt-4">
                        <div class="diagram-container">
                            <div class="mermaid">
                                sequenceDiagram
                                    participant C as 客户端
                                    participant F as 过滤器
                                    participant RW as RequestWrapper
                                    participant C as Controller
                                    
                                    C->>F: 发送请求
                                    F->>RW: 包装原生Request
                                    RW->>C: 传递包装后的Request
                                    C->>F: 返回响应
                                    F->>RW: 确保会话状态保存
                            </div>
                        </div>
                    </div>
                    
                    <div class="mt-4 pt-4 border-t border-gray-100">
                        <h4 class="text-sm font-semibold text-gray-500 mb-2">工作流程</h4>
                        <ul class="text-sm text-gray-600 space-y-1">
                            <li><i class="fas fa-arrow-right text-purple-500 mr-2"></i> 拦截器捕获请求</li>
                            <li><i class="fas fa-arrow-right text-purple-500 mr-2"></i> 创建Request/Response包装器</li>
                            <li><i class="fas fa-arrow-right text-purple-500 mr-2"></i> 后续处理使用包装器</li>
                            <li><i class="fas fa-arrow-right text-purple-500 mr-2"></i> 确保会话状态持久化</li>
                        </ul>
                    </div>
                </div>
            </div>
        </section>

        <!-- Implementation Details -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold text-gray-800 mb-6 font-serif">实现细节</h2>
            
            <div class="bg-white rounded-lg shadow-sm overflow-hidden">
                <div class="border-b border-gray-200 px-6 py-4 bg-gray-50">
                    <h3 class="text-lg font-medium text-gray-800">Spring Session Redis 配置</h3>
                </div>
                <div class="p-6">
                    <div class="grid md:grid-cols-2 gap-8">
                        <div>
                            <h4 class="font-medium text-gray-700 mb-3">核心组件关系</h4>
                            <div class="diagram-container">
                                <div class="mermaid">
                                    graph TD
                                        A[HttpServletRequest] --> B[SessionRepositoryFilter]
                                        B --> C[RedisOperationsSessionRepository]
                                        C --> D[RedisTemplate]
                                        D --> E[RedisConnectionFactory]
                                        E --> F[Redis Server]
                                </div>
                            </div>
                        </div>
                        <div>
                            <h4 class="font-medium text-gray-700 mb-3">关键配置步骤</h4>
                            <ol class="space-y-3 text-gray-600">
                                <li class="flex items-start">
                                    <span class="bg-blue-100 text-blue-800 rounded-full w-6 h-6 flex items-center justify-center flex-shrink-0 mr-3 text-sm">1</span>
                                    添加Spring Session和Redis依赖
                                </li>
                                <li class="flex items-start">
                                    <span class="bg-blue-100 text-blue-800 rounded-full w-6 h-6 flex items-center justify-center flex-shrink-0 mr-3 text-sm">2</span>
                                    配置Redis连接参数
                                </li>
                                <li class="flex items-start">
                                    <span class="bg-blue-100 text-blue-800 rounded-full w-6 h-6 flex items-center justify-center flex-shrink-0 mr-3 text-sm">3</span>
                                    启用Spring Session配置
                                </li>
                                <li class="flex items-start">
                                    <span class="bg-blue-100 text-blue-800 rounded-full w-6 h-6 flex items-center justify-center flex-shrink-0 mr-3 text-sm">4</span>
                                    配置SessionRepositoryFilter
                                </li>
                                <li class="flex items-start">
                                    <span class="bg-blue-100 text-blue-800 rounded-full w-6 h-6 flex items-center justify-center flex-shrink-0 mr-3 text-sm">5</span>
                                    测试会话共享功能
                                </li>
                            </ol>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Benefits Section -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold text-gray-800 mb-8 font-serif">架构优势</h2>
            
            <div class="grid md:grid-cols-3 gap-6">
                <div class="bg-white p-6 rounded-lg shadow-sm border-t-4 border-blue-500">
                    <div class="text-blue-500 text-3xl mb-4">
                        <i class="fas fa-project-diagram"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-2">分布式支持</h3>
                    <p class="text-gray-600">实现跨服务器、跨实例的会话共享，支持水平扩展和高可用架构。</p>
                </div>
                
                <div class="bg-white p-6 rounded-lg shadow-sm border-t-4 border-purple-500">
                    <div class="text-purple-500 text-3xl mb-4">
                        <i class="fas fa-tachometer-alt"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-2">性能优化</h3>
                    <p class="text-gray-600">利用Redis的高速内存存储和持久化能力，平衡性能与可靠性。</p>
                </div>
                
                <div class="bg-white p-6 rounded-lg shadow-sm border-t-4 border-green-500">
                    <div class="text-green-500 text-3xl mb-4">
                        <i class="fas fa-cogs"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-2">无缝集成</h3>
                    <p class="text-gray-600">与Spring生态系统深度集成，对业务代码几乎无侵入性。</p>
                </div>
            </div>
        </section>
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